EP1738142A1 - Magnetic flow meter with reference elctrode - Google Patents
Magnetic flow meter with reference elctrodeInfo
- Publication number
- EP1738142A1 EP1738142A1 EP05733670A EP05733670A EP1738142A1 EP 1738142 A1 EP1738142 A1 EP 1738142A1 EP 05733670 A EP05733670 A EP 05733670A EP 05733670 A EP05733670 A EP 05733670A EP 1738142 A1 EP1738142 A1 EP 1738142A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flowtube
- reference electrode
- flow meter
- current limiter
- coupled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/584—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters constructions of electrodes, accessories therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
- G01F1/60—Circuits therefor
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/825,480 US6920799B1 (en) | 2004-04-15 | 2004-04-15 | Magnetic flow meter with reference electrode |
PCT/US2005/011704 WO2005106400A1 (en) | 2004-04-15 | 2005-04-05 | Magnetic flow meter with reference elctrode |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1738142A1 true EP1738142A1 (en) | 2007-01-03 |
Family
ID=34750661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05733670A Ceased EP1738142A1 (en) | 2004-04-15 | 2005-04-05 | Magnetic flow meter with reference elctrode |
Country Status (5)
Country | Link |
---|---|
US (1) | US6920799B1 (en) |
EP (1) | EP1738142A1 (en) |
JP (1) | JP4787822B2 (en) |
CN (1) | CN1946989B (en) |
WO (1) | WO2005106400A1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10347878A1 (en) * | 2003-10-10 | 2005-05-04 | Abb Patent Gmbh | Magnetic-inductive measuring device for flowing substances and method for its production |
US7650797B2 (en) * | 2005-03-14 | 2010-01-26 | Siemens Aktiengesellschaft | Tubular insert for a magnetic induction flow meter |
US7798015B2 (en) * | 2005-05-16 | 2010-09-21 | Endress + Hauser Flowtec Ag | Magneto-inductive flowmeter and measuring tube for such |
DE102006018728A1 (en) * | 2006-04-20 | 2007-10-25 | Endress + Hauser Flowtec Ag | Device for measuring the volume or mass flow of a medium |
WO2008042290A2 (en) | 2006-09-29 | 2008-04-10 | Rosemount Inc. | Magnetic flowmeter with verification |
US7619418B2 (en) * | 2007-04-19 | 2009-11-17 | Rosemount Inc. | Magnetic flowmeter output verification |
US7509163B1 (en) * | 2007-09-28 | 2009-03-24 | International Business Machines Corporation | Method and system for subject-adaptive real-time sleep stage classification |
JP5039650B2 (en) * | 2008-07-01 | 2012-10-03 | 株式会社キーエンス | Flowmeter |
US7571655B1 (en) * | 2008-11-28 | 2009-08-11 | Murray F Feller | Magnetic flow meter with buffering electrodes |
WO2010088921A1 (en) * | 2009-02-04 | 2010-08-12 | Siemens Aktiengesellschaft | Electromagnetic flowmeter having corrosion protection of measuring electrodes, and method incorporating the same |
US7921733B2 (en) * | 2009-03-05 | 2011-04-12 | Rosemount Inc. | Magnetic flowmeter with coil ground path detection |
DE102009025488B4 (en) * | 2009-06-18 | 2015-10-08 | Siemens Aktiengesellschaft | Electromagnetic flowmeter and method for its production |
GB201006409D0 (en) | 2010-04-17 | 2010-06-02 | Univ Huddersfield | Means and method for mearsuring the flow rate of fluid |
US9163968B2 (en) | 2013-09-26 | 2015-10-20 | Rosemount Inc. | Magnetic flowmeter with drive signal diagnostics |
US9395221B2 (en) | 2013-09-26 | 2016-07-19 | Rosemount Inc. | Magnetic flowmeter with saturation detection of the measurement circuitry |
DE102016211577A1 (en) | 2016-06-28 | 2017-12-28 | Siemens Aktiengesellschaft | Magnetic-inductive flowmeter |
US10557730B2 (en) | 2017-06-22 | 2020-02-11 | Saudi Arabian Oil Company | Alternating magnetic field flow meters with embedded quality assurance and control |
US10330511B2 (en) | 2017-06-22 | 2019-06-25 | Saudi Arabian Oil Company | Alternating magnetic field flow meters |
US11365995B2 (en) | 2018-09-28 | 2022-06-21 | Georg Fischer Signet Llc | Magnetic flowmeter including auxiliary electrodes upstream and downstream of the pair of measuring electrodes and an adjustable brace |
US10712184B1 (en) | 2019-01-09 | 2020-07-14 | Georg Fischer Signet Llc | Magnetic flowmeter assembly having independent coil drive and control system |
WO2021087653A1 (en) * | 2019-11-04 | 2021-05-14 | 深圳市大疆创新科技有限公司 | Electromagnetic flowmeter, spraying system and unmanned aerial vehicle |
US11341830B2 (en) | 2020-08-06 | 2022-05-24 | Saudi Arabian Oil Company | Infrastructure construction digital integrated twin (ICDIT) |
US11687053B2 (en) | 2021-03-08 | 2023-06-27 | Saudi Arabian Oil Company | Intelligent safety motor control center (ISMCC) |
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-
2004
- 2004-04-15 US US10/825,480 patent/US6920799B1/en not_active Expired - Lifetime
-
2005
- 2005-04-05 WO PCT/US2005/011704 patent/WO2005106400A1/en active Application Filing
- 2005-04-05 CN CN2005800123570A patent/CN1946989B/en active Active
- 2005-04-05 EP EP05733670A patent/EP1738142A1/en not_active Ceased
- 2005-04-05 JP JP2007508390A patent/JP4787822B2/en not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2005106400A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2007532902A (en) | 2007-11-15 |
CN1946989B (en) | 2010-05-26 |
US6920799B1 (en) | 2005-07-26 |
JP4787822B2 (en) | 2011-10-05 |
WO2005106400A1 (en) | 2005-11-10 |
CN1946989A (en) | 2007-04-11 |
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